-14% is the change from 800 to 688
Calculation steps:
[( 688 - 800 ) ÷ 800] x 100 = -14%
Formula
Percentage change = [(688 - 800) / 800] x 100
Subtract the new number by the original number
688 - 800 = -112
-112 ÷ 800 = -0.14
-0.14 x 100 = -14%
Example